Chris, There is some merit in that 2nd approach from my last note. Having everything logged in, and dragging things around on a GUI eliminates human error for small numbers of ports. If you have 600 of them to do, I think automating it from output from the WWPN tool is better. Thousands of mouse movements might take hours.
The other thing to keep in mind with this migration is the change in our IO drawer. z10 had 4 port cards. ec12 primarily has 2 port cards. Are you carrying forward the old cards, or getting new Ficon Express 8S cards? This difference in port counts usually leads people to making more IOCDS changes than usual, and makes the migration harder. Anyway, hopefully we can figure something out, and it isn't as big of a problem as it seems now. Regards, Ray Higgs System z FCP Firmware Development Bld. 706, B42 2455 South Road Poughkeepsie, NY 12601 (845) 435-8666, T/L 295-8666 rayhi...@us.ibm.com Linux on 390 Port <LINUX-390@vm.marist.edu> wrote on 01/10/2014 01:03:37 PM: > From: "Will, Chris" <cw...@bcbsm.com> > To: LINUX-390@vm.marist.edu > Date: 01/10/2014 01:05 PM > Subject: Re: Question on WWPN WP > Sent by: Linux on 390 Port <LINUX-390@vm.marist.edu> > > So if we can't pre-stage our NPIV definitions, this will > significantly increase the cutover time from the Z10 to the EC12. > We have about 60 servers with about 600 LUNs. With other sites > having hundreds of guests, I would think there would be a better way > to do this. We have done cpu migrations in the past but this is the > first time z/VM and NPIV have been involved. > > Chris Will > > > -----Original Message----- > From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf > Of Scott Rohling > Sent: Friday, January 10, 2014 12:51 PM > To: LINUX-390@VM.MARIST.EDU > Subject: Re: Question on WWPN WP > > Ah ... now that you say this I do recall going through the same with our > SAN folks as well.. argh. I don't know enough about storage and SAN > fabrics to know if there is a way to 'prefill' without the channel > being logged in.. it did not sound like it, but I always wondered. > > Sorry - I guess it doesn't really help you.. as far as I know - > you cannot make use of any tool to import WWPN's so that they are > used for NPIV assignments on a new z box. I'd love to be wrong > about this though... > > Scott Rohling > > > On Fri, Jan 10, 2014 at 9:38 AM, Will, Chris <cw...@bcbsm.com> wrote: > > > Our issue is that z/VM and the zLinux guests have to be up and the > > npiv channel logged in before the new NPIV WWPN can be zoned from > the SAN side. > > At least this is my understanding with EMC storage. > > > > Chris Will > > > > -----Original Message----- > > From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of > > Scott Rohling > > Sent: Friday, January 10, 2014 12:28 PM > > To: LINUX-390@VM.MARIST.EDU > > Subject: Re: Question on WWPN WP > > > > I'm not familiar with the WPT tool, but my experience using NPIV would > > leave me to believe that the tool simply tells you what you're new > > WWPN's will be for the FCP channels, so that you can get zoning, > etc established > > before migrating to it. I don't believe you'll have to change anything > > on the Linux guests - as the target WWPN's on the fabric won't change > > - only the WWPN associated with the virtual device you attach to the Linux > > guests will. So if you know which virtual devices you'll use - they can > > zone things so those new WWPNs have access to same SAN as the old. Then > > you should be able to come up on the new box without changing anything. > > After you migrate - they can remove the old WWPN's from the zoning. > > That's my understanding, but my experience is mostly on the z/VM side > > and using EDEV with NPIV WWPN's.. I assume the same concepts apply to > > Linux guests directly attaching the stuff.. > > > > Scott Rohling > > > > > > > > > > On Fri, Jan 10, 2014 at 8:47 AM, Will, Chris <cw...@bcbsm.com> wrote: > > > > > We are migrating from a Z10 to an EC12 mainframe and have questions > > > about the WPT tool. Can we use this to import our existing NPIV > > > WWPN definitions from the Z10 to the EC12 so we do not have to > > > reconfigure the SAN definitions? If not, how does the WWPN > > > prediction tool help if we have to bring the new system and zLinux > > > guests up to do the SAN configuration? We are using EMC storage > > > with directly attached zfcp > > LUNs. > > > > > > Chris Will > > > Systems Software > > > (313) 549-9729 > > > cw...@bcbsm.com > > > > > > > > > > > > The information contained in this communication is highly > > > confidential and is intended solely for the use of the individual(s) > > > to whom this communication is directed. If you are not the intended > > > recipient, you are hereby notified that any viewing, copying, > > > disclosure or distribution of this information is prohibited. 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